Opencart

TL;DR version: if you use opencart or prestashop and your shares on facebook don’t look good, you have product images missing or product descriptions missing, read the article completely, to learn how to properly og: tag your templates.

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Some of my Prestashop and Opencart customers, especially French and eastern-europeans use in their product and category names special apostrophe characters, that while look good on the product page, in the product or category description itself, cause a very strange behaviour in Facebook’s sharer apps.